Optimizing performance of co-existing underlay secondary networks

P Chakraborty, S Prakriya - IEEE Transactions on Wireless …, 2018 - ieeexplore.ieee.org
In this paper, we analyze sum throughput and (asymptotic) sum ergodic rate performance of
two co-existing downlink multiuser underlay secondary networks employing either fixed-rate …

Downlink capacity and optimal power allocation in hybrid underlay–interweave secondary networks

M Jazaie, AR Sharafat - IEEE Transactions on Wireless …, 2015 - ieeexplore.ieee.org
In this paper, the downlink capacity region of a secondary network in a multiuser spectrum
sharing system is obtained for a hybrid underlay-interweave paradigm, where the current …

Asymptotic performance analysis of generalized user selection for interference-limited multiuser secondary networks

YH Al-Badarneh, CN Georghiades… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
We analyze the asymptotic performance of a generalized multiuser diversity scheme for an
interference-limited secondary multiuser network of underlay cognitive radio systems …

Fractional frequency reuse in ultra dense networks

SC Lam, XN Tran - Physical Communication, 2021 - Elsevier
Abstract Ultra Dense Network (UDN) in which Base Stations (BSs) are deployed at an ultra
high density is a promising network model of the future wireless generation. Due to ultra …

Performance analysis of joint transmission schemes in ultra-dense networks–A unified approach

S Chen, X Liu, T Zhao, HH Chen… - IEEE/ACM Transactions …, 2019 - ieeexplore.ieee.org
Ultra-dense network (UDN) is one of the enabling technologies in the fifth generation (5G)
wireless communications, and the application of joint transmission (JT) is extremely …

Cooperative transmissions in ultra-dense networks under a bounded dual-slope path loss model

Y Yang, KW Sung, J Park, SL Kim… - … Conference on Networks …, 2017 - ieeexplore.ieee.org
In an ultra-dense network (UDN) where there are more base stations (BSs) than active
users, it is possible that many BSs are instantaneously left idle. Thus, how to utilize these …

Transmit power policy and ergodic multicast rate analysis of cognitive radio networks in generalized fading

A Subhash, M Srinivasan, S Kalyani… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
This paper determines the optimum secondary user (SU) power allocation and ergodic
multicast rate of point-to-multipoint communication in a cognitive radio network (CRN) in the …

Fractional frequency reuse in multi-tier networks: Performance analysis and optimization

SC Lam, K Sandrasegaran - International Journal of Wireless Information …, 2020 - Springer
Frequency Reuse (FR) is an efficient approach to improve the network performance in a
multi-cell cellular network. In this paper, we investigate the performance of heterogeneous …

Coexisting with the dynamic PU, the effect of PU‐returns on a secondary network

MR Amini, M Mahdavi, MJ Omidi - International Journal of …, 2017 - Wiley Online Library
Coexisting with a dynamic primary user network is a challenge in cognitive radio networks,
since the rate at which primary user reoccupies the spectrum is high. Therefore, it is …

Performance analysis of MIMO spectrum-sharing networks with pre-whitened interfering signals under outdated channel information

S Kumar, S Chouhan - IEEE Wireless Communications Letters, 2015 - ieeexplore.ieee.org
In this letter, the performance of multiple-input multiple-output based spectrum-sharing
networks is analyzed when pre-whitening of spatially correlated interfering signals is …